From 8aa77f9cab9aead9f684d2a19d11515f468465f1 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 9 Dec 2019 10:49:40 +0100 Subject: ALSA: ua101: Use managed buffer allocation Clean up the driver with the new managed buffer allocation API. The hw_free callback became superfluous and got dropped. Link: https://lore.kernel.org/r/20191209094943.14984-69-tiwai@suse.de Signed-off-by: Takashi Iwai --- sound/usb/misc/ua101.c | 23 ++++------------------- 1 file changed, 4 insertions(+), 19 deletions(-) (limited to 'sound/usb/misc') diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c index 566a4a31528a..a7b68447f3ad 100644 --- a/sound/usb/misc/ua101.c +++ b/sound/usb/misc/ua101.c @@ -730,11 +730,7 @@ static int capture_pcm_hw_params(struct snd_pcm_substream *substream, mutex_lock(&ua->mutex); err = start_usb_capture(ua); mutex_unlock(&ua->mutex); - if (err < 0) - return err; - - return snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); + return err; } static int playback_pcm_hw_params(struct snd_pcm_substream *substream, @@ -748,16 +744,7 @@ static int playback_pcm_hw_params(struct snd_pcm_substream *substream, if (err >= 0) err = start_usb_playback(ua); mutex_unlock(&ua->mutex); - if (err < 0) - return err; - - return snd_pcm_lib_malloc_pages(substream, - params_buffer_bytes(hw_params)); -} - -static int ua101_pcm_hw_free(struct snd_pcm_substream *substream) -{ - return snd_pcm_lib_free_pages(substream); + return err; } static int capture_pcm_prepare(struct snd_pcm_substream *substream) @@ -885,7 +872,6 @@ static const struct snd_pcm_ops capture_pcm_ops = { .close = capture_pcm_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = capture_pcm_hw_params, - .hw_free = ua101_pcm_hw_free, .prepare = capture_pcm_prepare, .trigger = capture_pcm_trigger, .pointer = capture_pcm_pointer, @@ -896,7 +882,6 @@ static const struct snd_pcm_ops playback_pcm_ops = { .close = playback_pcm_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = playback_pcm_hw_params, - .hw_free = ua101_pcm_hw_free, .prepare = playback_pcm_prepare, .trigger = playback_pcm_trigger, .pointer = playback_pcm_pointer, @@ -1294,8 +1279,8 @@ static int ua101_probe(struct usb_interface *interface, strcpy(ua->pcm->name, name); snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_pcm_ops); snd_pcm_set_ops(ua->pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_pcm_ops); - snd_pcm_lib_preallocate_pages_for_all(ua->pcm, SNDRV_DMA_TYPE_VMALLOC, - NULL, 0, 0); + snd_pcm_set_managed_buffer_all(ua->pcm, SNDRV_DMA_TYPE_VMALLOC, + NULL, 0, 0); err = snd_usbmidi_create(card, ua->intf[INTF_MIDI], &ua->midi_list, &midi_quirk); -- cgit v1.2.1